"Water wheel? I don't believe that I am worse than the ancients. A small water wheel can only design one by myself!" Li Xiu walked back and forth several times in the room, and finally gritted his teeth and said.

Irrigation of the fields is a big problem, so there is no need to think about the pump. The only thing that can solve the problem now is the water truck, but the craftsman who designed the water truck could not be found. Li Xiu thought about it and made a last decision and then said that he wanted to design the water truck himself.

In fact, Li Xiu had also thought about asking Princess Pingyang for help, but according to his observation, the tenants on Princess Pingyang did not use water trucks. Li Xiu estimated that although Princess Pingyang's family had many craftsmen, no one knew how to design water trucks, otherwise her personality would definitely not sit idly by and let the tenants be so tired.

Just a waterwheel, the complexity is definitely not comparable to that of later machinery. Although Li Xiu has never learned mechanical design, has never eaten pork and has not seen pigs running? He has not been exposed to a few machines in his later generations. He has built bicycles by himself, and the principles of the waterwheel are not complicated, so it should not be very difficult to design them.

Another important reason is that in the village where Li Xiu lived when he was a child, there was an old mill driven by hydraulic power, which of course had long been no longer used. So the abandoned mill became a playground for children like Li Xiu. Li Xiu still vaguely remembers the internal structure of the mill. Of course, the mill and the water wheel have different functions, but the principles are the same, so there are many references.

He decided to design the waterwheel himself. Li Xiu sat down and calmed himself down and tried hard to recall his childhood visits in the hydraulic mill, thereby reorganizing the internal structure of the mill, and then using his previous life knowledge to supplement the missing structure. After he understood a rough idea in his mind, he immediately walked to the desk and began to draw graphics on the paper.

However, halfway through the drawing, Li Xiu found that he had made a mistake, so he had no choice but tore the drawings and repainted them. As a result, he was torn before he finished drawings. After repeated several times, Li Xiu found that he underestimated the structure of the water truck. He was no longer in a hurry to do something, but sat there again and thought seriously.

"Hmm? I remember seeing a pedaled waterwheel on TV. The structure seems to be much simpler?" After a while, Li Xiu suddenly opened his eyes and said to himself. He just wanted to design a hydraulic waterwheel that looked like a Ferris wheel, but some details need to be considered. Compared to that kind of waterwheel, the various waterwheels on his pedal seemed to be simpler.

Li Xiu thought for a while and finally started writing. This time it went very smoothly. After writing and drawing on the paper for a long time, he finally drew a structural diagram of the waterwheel. Then Li Xiu made several modifications to the drawings and tried to reduce some parts as much as possible to make it simpler, the better, because the simpler the structure, the smaller the possibility of it malfunctioning and it is more convenient to repair.

After revising it more than a dozen times, Li Xiu nodded with satisfaction. However, this kind of pedaling water wheel is not efficient and requires manpower to brake, so Li Xiu is still not very satisfied with it. He picked up the design of the hydraulic water wheel again and began to think seriously.

Perhaps it was because of the successful case of pedaling waterwheel that Li Xiu had accumulated some experience. After one success, he felt that his brain was also flexible. Some theories he had learned before could be turned into practical use, such as the transmission of force, the application of gears and chains, etc. These things were learned from textbooks before. Li Xiu thought he would not have the opportunity to use them at all, and even he began to forget them himself, but he did not expect that after more than a thousand years, these things became his greatest wealth.

After several revisions, the structural diagram of the hydraulic water truck was finally completed. Like the previous pedal water truck, Li Xiu also reduced the structure of the entire water truck, and at the same time made the entire structure more in line with the principles of mechanical force and used the kinetic energy provided by hydraulic power as much as possible. Although Li Xiu dared not say that the water truck he designed was the best, at least he used all the knowledge he could use.

When Li Xiu sorted out the drawings of two different types of water trucks, he looked up and found that it was already late at night. At some point, a few candles were lit next to him. Yuechan and Liu'er were lying on the opposite desk and slept soundly. It was estimated that the two little girls also knew that Li Xiu was busy with important things and did not dare to disturb him. They only lit candles for him when it was dark. At that time, Li Xiu was devoted to the design of the drawings, but he did not notice at all.

At that moment, Li Xiu walked over to look at the two sleeping two little girls. Yue Chan still looked chubby. After watching for a long time, it was very attractive. Liu'er was still a little girl who had not grown up. The two girls were sleeping soundly. Although the weather was getting warmer now, it was still very cold at night. Especially Liu'er, who was thin, had already tightly curled up in her sleep and kept hiking into Yue Chan's arms. The two looked even more petite in comparison.

At that moment, Li Xiu bent down and picked up Liu'er. The little girl was only a few dozen kilograms, so she didn't suppress anyone. Then Li Xiu strode to the wing room and put her on the bed, covered her with a quilt, and then came back to pick up Yue Chan, but he obviously underestimated Yue Chan's weight and overestimated his strength. He suddenly exerted force not only to pick up Yue Chan, but almost pressed himself down.

Yuechan was also awakened. When she opened her eyes and saw Li Xiu hugging her, she immediately broke free from it in fear, and then she was like a frightened little rabbit. No, she should have escaped to the corner like a little fat rabbit and asked in panic: "Old... what are you doing?"

"Don't get me wrong. I saw you and Liu'er asleep. I wanted to carry you on the bed, but I didn't hold you." Li Xiu stood up with his waist at this time, then smiled bitterly and complained to Yue Chan, "But Yue Chan, you really have to lose weight. I almost flashed to my old waist just now."

Hearing Li Xiu's joke later, Yue Chan couldn't help but lower her head shyly. After a while, she said in a low voice like a mosquito and flies: "Master, you must be hungry, I'll go and make some food for you!"

After Yue Chan finished speaking, she left the room as if she had escaped, which made Li Xiu laugh. Although Yue Chan was a little fat, she was gentle, knew how to manage the family and was proficient in female workers. She was a standard ancient woman. I wonder who would have such great blessing to marry her in the future?

After a while, Yue Chan brought a bowl of porridge and two side dishes. She was already good at cooking, and after learning Li Xiu's ability to cook during this period, her cooking skills became better and better. In addition, Li Xiu was really hungry. When she was about to eat, she suddenly thought of something and asked Yue Chan: "Yue Chan, have you had dinner with Liu'er?"

"We have already eaten. During dinner, I saw the master painted so seriously, so I didn't dare to disturb him. But I didn't expect that the master was busy until midnight." Yuechan said in a clear voice. She and Liu'er were both from the south. Guanzhong dialect always had a bit of softness in the southern Wu language, which sounded very special.

"By the way, Yue Chan, you are from the south, you should be very familiar with water carts, right?" Li Xiu suddenly thought of Yue Chan's origin, and then slapped his head. Uncle Liu said that there are many water carts in the south, but he forgot that there is a southerner around him. He should have listened to her opinion before he knew it.

"Well, the rice fields in the south require a lot of water, so water trucks are very common." Yuechan nodded and said.

"That's great. Look at these two drawings. What's the difference between these water trucks and the water trucks you've seen?" Li Xiu immediately handed the drawings of the two water trucks to Yue Chan and asked. He designed these two water trucks based on his imagination. He didn't know whether it was feasible. Find someone who had actually seen the water truck and could help him give his opinions.

Yuechan took the drawing and looked at it seriously. In fact, she was also very curious about what Li Xiu was drawing until midnight. The top was the waterwheel drawn by Li Xiu. As a result, Yuechan recognized it at a glance and said, "Master, you have been busy for a long time and turned out to be drawing a waterwheel."

"Keel water wheel? Are water wheels called in the south?" Li Xiu said in surprise when he heard this.

"Yes, Master, you see, this water wheel is composed of water buckets, which looks like a keel bone, so it is called a keel bone water wheel. This water wheel is said to be created by Bi Lan in the Han Dynasty. There are records in the Book of Later Han. However, some people say it was created by Ma Jun in the Three Kingdoms. The Three Kingdoms also records this incident. However, no matter who created it, the keel bone water wheel is an amazing creation. With it, it will be much more convenient for the people to irrigate the fields." When Yuechan said these words, she actually looked a little full of spirit.

"Book of the Later Han Dynasty, "Records of the Three Kingdoms", I didn't expect that Yuechan, you have read a lot of books?" Li Xiu was surprised again when he heard this. He knew that Yuechan was literate, but he didn't expect that she had read history books. Such maids are rare.

When Yuechan heard Li Xiu's question, she obviously turned pale and seemed to have no idea how to explain. Finally, she simply lowered her head and stopped talking, and her little hands kept rubbing the corners of her clothes nervously.

If it were other owners, they would definitely ask the question when they saw the maid concealed something from him. However, Li Xiu was a later generation after all, and he still respected others' privacy. After all, who in this world has nothing to say to others? So he smiled and did not ask again, but changed the topic: "Yuechan, look at the difference between the water wheel I drew and the water wheel? I have never seen the water wheel before, so I can only design it out of imagination?"

Seeing that Li Xiu did not ask, Yue Chan was obviously relieved. She looked at the drawings of the pedal waterwheel seriously, but the more she looked, the more surprised she became. Finally, she said in disbelief: "Master, is this really just a waterwheel you designed yourself?"

"Of course, have you seen it all? You've been busy until now, even supper has turned into a midnight snack." Li Xiu said while picking rice into his mouth.

"Although the water wheel of the master is similar to the keel water wheel, its structure is much simpler, and it should be feasible depending on the principle of its operation!" Yue Chan nodded and exclaimed when she heard this, and there was a little respect in her eyes looking at Li Xiu.

"Haha, I feel much more relieved with you. Look at the drawing below, which is another water truck I designed." Li Xiu couldn't help but smile happily when he heard Yue Chan's words. It seemed that the tuition fees he paid in school in later generations were indeed not wasted.

Yuechan heard that there was another kind of water wheel, and immediately hurriedly looked at the next drawing. This time she was even more shocked. Compared to the keel water wheel, this water wheel looked even more strange, like a big wheel. Yuechan had seen something similar, that is a hydraulic mill, but it was used for grinding noodles. However, Li Xiu actually installed a bucket of water lifting on it, which could automatically lift the water to a high place and pour it into a specific trough, which could lead to the field.

"How is this water truck is better than the one just now?" Li Xiu asked with a smile.

"The master is incomparable and he actually adds a bucket to the water wheel mill. If this thing is made, it will be more convenient for the people to irrigate the fields!" Yuechan exclaimed again. She now has the same idea as Mr. Ma, that the more she gets with Li Xiu, the more she feels the unfathomable he is.

"Hydraulic mill? Is this thing available now?" Li Xiu asked in surprise when he heard this. Although there was an abandoned hydraulic mill in his hometown in his previous life, he really didn't know when this thing was invented by the ancient people?

"Of course, the hydraulic mill was also invented in the Han Dynasty. It was only used to grind noodles and pound rice. Only the master thought of using it to get water." Yuechan looked at Li Xiu with admiration.

Li Xiu was speechless when he heard this. He thought he had made an epoch-making invention, but he didn't expect that similar things had already appeared in history. At most, he made improvements based on his predecessors. However, he comforted himself and thought that later generations Watt was also the steam engine that improved on his predecessors. However, people thought of him the first time they mentioned the steam engine, so maybe after he invented the water wheel, the first time people thought of him when they mentioned the water wheel?

In fact, what Li Xiu didn't know was that the real use of hydraulic water trucks for irrigation began in the Tang and Song dynasties, and this method was not invented in the early Tang dynasties, so he only advanced this invention by one or two hundred years.

The next morning, Li Xiu ran to find Ma Ye excitedly. After all, although he designed the drawings, he needed the craftsmen to convert the things on the drawings into real objects. If he wanted to find a craftsman, he could only find Ma Ye. Li Xiu didn't want to bother Ma Ye. However, the waterwheel was a good thing that benefited the country and the people. After the construction was made, it was not only possible to use them himself, but also the tenants on the princess' side, so he was justified to find Ma Ye this time.

However, just before Li Xiu had just arrived at the gate of the Princess Villa, he suddenly saw a person he didn't want to see the least. Fortunately, he reacted quickly and turned around and left, while silently reciting in his heart: I can't see me! I can't see me...
Chapter completed!